Abstract
The effectiveness of the treatment of pathogens disease in fish using chemicals is very limited because of the stress of toxic ions. A treatment of humic acid of 50-90 mg /L on a farmland has been able to reduce illness and death compared to a mixture of formaldehyde and blue-green methylene. Humic acid is suspected to be able to increase yield, through improved conditions and resistance to diseases, health, and cultural vitality, either by itself or combined with cation species toxic. Humic acid can balance the soil cation so that the soil pH reached 7-8, through a chelate of Al, Fe, Ca or exchanged with NH4, Na and K. Humic acids were extracted from compost plants with a weak base of 0.1 N NaOH and precipitated at pH 2. The concentration of AH 0- 400 ml was applied to three soil types with an area of 0.12 m2 and 15 cm thickness. The results showed that the application of 100-200 ml HA/0.12 m2 gave optimum yield in improving the physical-chemical characteristics of the soil embankment. Soil pH reached a value of 7-8, cation exchange to 60% saturated, and soil bulk density was reached in the range of 1.1- 0.97 g / cm3.This condition is suitable for fish or shrimp in the embankment.
Highlights
The low levels of fertility and quality of soil embankment are due to fluctuations in salt content, organic sediment, plankton, and soil structure (Machmudin, 2009)
The humic acid having a pH 2 adjusted to a pH of 6 for the application
The value of E4 and E6 were analyzed by diluting humic acid with 0.05 N NaHCO3 (1 mL of humic acid: 10 mL), and each of which was analyzed at a wavelength of 465 and 665 nm using a Spectro Pharo 100
Summary
The low levels of fertility and quality of soil embankment are due to fluctuations in salt content, organic sediment, plankton, and soil structure (Machmudin, 2009). The order of heavy metals and inorganic anions in water: Fe-MnZn > Pb >Cu > Cd, whereas in sediments are: Fe >Mn-Zn > Cu >Pb > Cd. Alkalinity is a buffer important to control embankment soil pH and changes of dissolved cations. Humic acid (HA) is a cyclic organic compound having high molecular weight, longchain, and active carboxyl group (- COOH) and phenolic (OH), which are amphoteric, binding of cations/anions at certain pH dependent charge (Stevenson, 1994; Bohn et al, 2001; Pena-Méndez et al, 2005; Khaled and Fawy, 2011). Character humic acids were analyzed by NMR, pH, EC and Redox with soil paste method, and cations using ammonium acetate extract. The regression and correlation treatment of the results were used to assess the buffer dose optimization
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
